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BICSI · Last updated November 2026

Installer 1 (INST1): free practice test

INST1 is BICSI's entry-level, nonrenewable certificate for installing copper and coaxial ICT cabling in commercial buildings. Candidates complete a six-task hands-on exam first, then a 75-question written exam drawn from the ITSIMM, 8th edition. This prep covers only the written part.

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About the BICSI Installer 1 (INST1) exam

INST1 is BICSI's entry-level, nonrenewable certificate for installing copper and coaxial ICT cabling in commercial buildings. Candidates complete a six-task hands-on exam first, then a 75-question written exam drawn from the ITSIMM, 8th edition. This prep covers only the written part.

What's on the exam

BICSI Installer 1 (INST1)
Field Planning and Site Safety
8 key facts
Pathways, Spaces, Bonding and Firestop
9 key facts
Pulling Copper and Fiber Cable
8 key facts
Terminating Copper, Coax and Fiber
8 key facts
Testing and Troubleshooting Copper
8 key facts
Retrofits, Integration and Codes
7 key facts

Each branch is a topic in the official outline. Members see every key fact on the full mind map. Read the free study guide →

How to pass the BICSI Installer 1 (INST1) exam

  • Pathways and spaces carry 31% of the written exam, more than any other area, so learn conduit, supports, sleeves, bonding and firestop before fine detail on terminations.
  • 75 questions in 2 hours is 96 seconds each, which leaves time to work conduit fill and ladder setup problems on the whiteboard and check the units.
  • You cannot sit the written exam until the hands-on exam is passed, and one year of eligibility starts at your first hands-on attempt. Book the written exam soon after the hands-on.
  • BICSI recommends at least 50 hours of independent study of the ITSIMM, 8th edition. Failed attempts bring a 30-day wait, and a third failure a 90-day wait.

Save your results and get your Readiness Score

Create a free account after the test: your score by topic, a mistakes bank, the complete study notes for the first topic, flashcards and the RCDD Numbers & Formulas Sheet.

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What's in the premium BICSI Installer 1 (INST1) prep

Premium BICSI Installer 1 (INST1) prep is studied one topic at a time. Each step starts with that topic's key notes and flashcard deck, then its own question sets of 25, so you master one topic before you move to the next. When every topic is strong, the 6 full mock exams show you're ready.

3,000practice questions, every answer explained
6full-length mock exams, 75 questions each, timed
800flashcards with spaced repetition, sorted by topic
60comprehensive key notes across 6 topics

Your step-by-step study path

  1. 1
    Field Planning and Site Safety10 key notes, 135 flashcards, then 500 practice questions in 20 sets of 25
    Notes free with an account
  2. 2
    Pathways, Spaces, Bonding and Firestop10 key notes, 135 flashcards, then 500 practice questions in 20 sets of 25
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  3. 3
    Pulling Copper and Fiber Cable10 key notes, 135 flashcards, then 500 practice questions in 20 sets of 25
    Premium
  4. 4
    Terminating Copper, Coax and Fiber10 key notes, 135 flashcards, then 500 practice questions in 20 sets of 25
    Premium
  5. 5
    Testing and Troubleshooting Copper10 key notes, 130 flashcards, then 500 practice questions in 20 sets of 25
    Premium
  6. 6
    Retrofits, Integration and Codes10 key notes, 130 flashcards, then 500 practice questions in 20 sets of 25
    Premium
  7. Final step: 6 full mock exams75 questions each, timed like test day. Pass them, then book your exam.
    Premium
Free with an account

Read the complete BICSI Installer 1 (INST1) study notes for “Field Planning and Site Safety”

Our first full set of comprehensive notes, about 12 minutes of reading: Identifying copper cable · Identifying optical fiber · Reading blueprints and inventorying · Site safety plan · Labeling, a worked exam example, the traps examiners use and a one-minute recap. Create a free account to read it and see how premium notes work before you decide.

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Study tools included

3,000 practice questions

3,000 exam-style questions per exam, organized topic by topic in sets of 25. Every answer explained, with the rule it comes from.

6 full mock exams

6 full-length timed mock exams per exam, with real question counts and time limits, so test day feels like practice day.

Exam Readiness Score

One 0 to 100 number that tells you when you're ready to book. Reach 80 and you're covered by our Pass Guarantee.

800 flashcards + spaced repetition

800 flashcards per exam, in a deck for each topic, that come back right before you'd forget them. Five minutes a day keeps every number fresh.

60 comprehensive key notes

60 key notes per exam, split across its topics and each explained in full: the concepts, worked exam examples, the traps examiners use and a quick recap. Your first set is free with an account.

Mind maps

See the whole exam on one screen: every topic and the facts under it.

Sample questions with answers

These are the questions in the free test above, with answers. Try the test first. You'll learn more by getting some wrong.

1. A patch panel port is labeled 3A-C17 under the TIA-606 format for horizontal links. What does the 3A part of this identifier tell the installer?
Answer: Telecommunications space A on floor 3. In the fs-an format, f is the floor, s is the space on that floor, a is the patch panel and n is the port. So 3A is space A on floor 3, and C17 is port 17 on panel C. The common error is reading the first characters as panel and port, which swaps the location with the hardware.
2. An extension ladder will rest against a wall at a working length of 6 m (20 ft). How far from the wall should the base be placed?
Answer: 1.5 m (5 ft). The rule is one unit out for every four units of working length, so 6 m divided by 4 is 1.5 m. A base that sits too close can tip backward, and one too far out can slide. OSHA ladder rules (29 CFR 1926 Subpart X) use the same 1:4 ratio.
3. A planned 27 m (90 ft) horizontal conduit run has three 90-degree bends between its pull points. What is the correct way to bring it within TIA-569 practice?
Answer: Add a pull box so no section has over two bends. A conduit section should run no more than 30 m (100 ft) and have no more than two 90-degree bends between pull points, so a pull box must split the run. Being under the length limit does not excuse the third bend. LB conduit bodies are not substitutes for a proper pull point, and lubricant does nothing for compliance.
4. New steel conduit has been cut and installed, and the cut ends inside a pull box are sharp. What should be done before any cable is pulled?
Answer: Ream the cut ends and fit bushings. Burrs on a cut conduit end can slice a cable jacket during the pull, so ends are reamed smooth and fitted with bushings. Lubricant, tape or a slower pull leave the sharp edge in place. Fix the pathway before pulling, because damage inside a conduit is hard to find later.
5. A new cable bundle must pass through a 1-hour rated gypsum wall. What should determine the materials and method used to seal the opening?
Answer: A listed firestop system matching wall, opening and cable. A firestop must be a tested and listed system (for example, under ASTM E814 or UL 1479) that matches the barrier type, hourly rating, opening size and penetrant. A familiar product or a facilities preference isn't evidence the assembly will perform. Follow the listing's details exactly and document the system used.
6. An installer is landing a telecommunications bonding conductor on a busbar in a telecommunications room. Which connection follows TIA-607 practice?
Answer: A two-hole compression lug on a cleaned busbar. Bonding conductors should end in listed two-hole compression lugs on a clean, bright busbar, with antioxidant where the manufacturer calls for it. Solder can fail under fault-current heat, and shared or wire-nut joints leave a weak, hard-to-inspect connection. Each conductor gets its own termination.
7. During a horizontal pull, a Category 6 cable is sharply kinked at a corner and the jacket is visibly deformed. It has been straightened by hand. What should the installer do?
Answer: Replace the damaged cable with a new length. A kink can permanently change the pair geometry, which damages the cable's transmission performance. A continuity test only proves the conductors are connected, so it won't reveal this damage. Taping or noting the kink leaves the defect in place, so the rule is to replace the cable.
8. A 100-pair copper riser cable is being pulled from the top floor down a sleeve shaft. As more cable enters the shaft, its weight starts to drag it off the reel. What should the crew do?
Answer: Use the reel brake and control the descent from each floor. On a top-down riser pull, gravity does the work, so the danger is a runaway cable. The crew controls the reel with a brake and stations people at floors to guide and secure the cable. Letting the cable free-fall risks injury and damage, and extra pull from below only adds to the load.
9. A crew is about to pull a small indoor optical fiber cable through a duct. Where should the pulling force be applied?
Answer: To the aramid yarn, through a pulling eye or grip. Aramid yarn is the strength member built to carry tensile load, so it is tied into the pulling eye or grip. Loading the glass, the jacket alone or the buffer tubes can stretch or break the fibers. Stay within the manufacturer's stated tension limit.
10. A project specifies T568B at every jack. An installer is about to seat the white/green conductor. Which pin position does it belong on?
Answer: Pin 3. In T568B, the white/green conductor goes to pin 3 and the solid green to pin 6. Pin 1 is where white/green sits in T568A, the common mix-up. Pin 5 is white/blue in both schemes, so check the jack's color legend for the scheme named in the project.
11. A new RG-6 distribution system has a splitter with one unused output port. How should that port be finished?
Answer: Install a 75-ohm terminator on it. RG-6 video systems are 75-ohm systems, so an unused port needs a 75-ohm terminator to prevent reflections from an impedance mismatch. A 50-ohm terminator is the wrong impedance even though it looks right, and an open port reflects the signal too.
12. Category 6A cable is installed, but Category 5e jacks are used at the outlets because the Category 6A jacks were back-ordered. How will the finished link be rated?
Answer: Category 5e, since the lowest component sets the rating. A link can only be rated for the lowest category of component in it, so Category 5e jacks hold the link to Category 5e. The parts do connect physically, which is why this mistake happens. Install connecting hardware that matches or exceeds the required category.
13. One end of a horizontal link was terminated T568A and the other end T568B. Which wiremap result will a tester report?
Answer: A crossed-pair fault between pairs 1-2 and 3-6. T568A and T568B swap the green and orange pairs, so pins 1-2 at one end connect to pins 3-6 at the other. Testers call that crossed pairs. A reversed pair swaps the two conductors within one pair, and a split pair breaks up the twisted pairs while keeping pin-to-pin continuity.
14. A tester reports an open at 38 m on a link whose route is about 52 m long. Where should the installer look first?
Answer: Along the route about 38 m from the tester. A time domain reflectometer reports the distance to the fault, so inspect the route near 38 m for damage such as a crushed or cut section. Opens are not limited to terminations. Replacing the whole cable first can waste material and leaves the reason for the damage unknown.
15. A contractor asks to run a building's fire alarm circuits over spare pairs in the structured cabling. What should the installer do?
Answer: Refer it to the designer and the AHJ before connecting. Fire alarm wiring has its own code requirements (NEC Article 760 and NFPA 72), so spare structured cabling is not automatically acceptable. The system designer and the authority having jurisdiction decide. A plenum rating or a passing wiremap says nothing about fire alarm circuit compliance.

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BICSI Installer 1 (INST1) exam FAQ

How many questions are on the BICSI Installer 1 (INST1) exam?

75 multiple-choice written questions (knowledge and application), after a separate six-task hands-on exam, with a time limit of 2 hours for the written exam (no scheduled breaks; any break counts toward the time). hands-on exam: 20 minutes per task. Format: no personal items or references in the test room; a calculator and a whiteboard are provided. questions come from the itsimm, 8th edition. this prep covers only the written part, and the hands-on exam must be passed first.

What is the passing score for BICSI Installer 1 (INST1)?

Not published. BICSI sets the written passing score by standard setting and reports pass or fail, with a section-level report if you fail. Aim for 75% or higher in practice (our suggestion, not a BICSI figure).

How much does the BICSI Installer 1 (INST1) exam cost?

US$335 for BICSI members, US$400 for nonmembers (application incl. first hands-on and first written attempt); retest US$135 members, US$200 nonmembers per attempt. Virtual walk-in hands-on exam fee US$135. BICSI fees can change without notice, so confirm on bicsi.org before you apply.

Which languages is the BICSI Installer 1 (INST1) exam offered in?

Not stated in the 2026 INST1 handbook; confirm with BICSI Credentialing.

Where do I take the BICSI Installer 1 (INST1) exam?

Written exam: Pearson Professional Assessments (Pearson VUE) test centers. Hands-on exam: administered through BICSI, usually on the last day of IN101 Installer 1 Training.

Is this BICSI Installer 1 (INST1) practice test free?

Yes. The 15-question practice test on this page is free, with an explanation for every answer and no signup. A free account also unlocks the complete study notes for the first topic. The full BICSI Installer 1 (INST1) prep is Premium at $147 a month for this exam.

What's in the premium BICSI Installer 1 (INST1) prep?

3,000 practice questions organized topic by topic (Field Planning and Site Safety: 500; Pathways, Spaces, Bonding and Firestop: 500; Pulling Copper and Fiber Cable: 500; Terminating Copper, Coax and Fiber: 500; Testing and Troubleshooting Copper: 500; Retrofits, Integration and Codes: 500), 6 full-length timed mock exams of 75 questions, 800 flashcards and 60 comprehensive key notes split across all 6 topics, plus a mistakes bank and the Readiness Score.

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Exam details are summarized from the official candidate information available in October 2026. BICSI changes formats and fees, so confirm with BICSI before you book. RCDDQuizBank is not affiliated with BICSI or Pearson VUE.

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